Sd-25049 - Phd in Nanoscale Electro-optic Control of Semiconductor Quantum Systems

Description
**Temporary contract | Up to 48 months (14 months initial contract) | Belval**:
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**Are you passionate about research? So are we Come and join us**:
The Luxembourg Institute of Science and Technology (LIST) is a Research and Technology Organization (RTO) active in the fields of materials, environment and IT. By transforming scientific knowledge into technologies, smart data and tools, LIST empowers citizens in their choices, public authorities in their decisions and businesses in their strategies.

**How will you contribute?**:
Join us for building the next generation of semiconductor quantum chips

You will be part of the LIST Materials Research and Technology department, where you will carry out your work in the Quantum Materials Group, led by Dr. Florian Kaiser.

Within our ERC Consolidator Project “Q-Chip”, you will define the new standard in the scalability of solid-state quantum systems.

How? You benefit from the vast potential of our industry-compatible semiconductor quantum platform, i.e., colour centres in silicon carbide. You will integrate multiple electrical and optical control structures on a quantum chip, which unlocks completely new ways of operating quantum systems.

Your PhD thesis objectives include:
(a) Strongly increasing the quantum algorithm depth that we can implement with nuclear spin qubits in silicon carbide.
You will bring to live a novel concept that we have developed, which reduces two-qubit gate durations by at least one order of magnitude. This technique is unique to silicon carbide qubits and requires implementing high-speed magnetic field tuning lines at a nanoscale.

(b) Demonstrating the first scalable electro-optic quantum chip in silicon carbide based on parallelised nanoscale electric field tuning.
You will design and farbicate a quantum chip that incorporates Stark shift electrodes around several colour centres. This will allow you to make them operate at the same wavelength, a fundamental prerequisite for creating entanglement amongst them via photonic interference.
Additionally, you will demonstrate high-speed electro-optic switches on our silicon-carbide-strontium-titanate hybrid platform, which unlocks the ultimate scalability potential of the platform.

(c) The final goal is to combine the above techniques to create the first functional silicon carbide quantum chip, and to demonstrate its operation, e.g., creation of photon-mediated entanglement between distant nuclear spin qubits.

Overall, this PhD thesis project stands as a disruptive breakthrough towards cost-effective semiconductor-based quantum technologies.

**Education**
- MSc degree in physics, quantum technology, materials science, or electrical engineering

**Experience and skills**
- Excellent written and oral communication skills e.g., in publications, reports, and/or presentations
- Collaborative skills, initiative, result oriented, organisation, and capacity to work in a highly international environment
- Team spirit is a critical requirement.
- Mandatory: Demonstrated experience with quantum optics and/or semiconductor electronics, at least within a BSc/MSc thesis project.
- Ability to effectively and reliably coordinate with the supervisor and multiple collaborators

**Language skills**
- Good level both written and spoken English.

**Your LIST benefits**:

- An organization with a passion for impact and strong RDI partnerships in Luxembourg and Europe that works on responsible and independent research projects
- Sustainable by design, empowering our belief that we play an essential role in paving the way to a green society
- Innovative infrastructures and exceptional labs occupying more than 5,000 square metres, including innovations in all that we do
- An environment encouraging curiosity, innovation and entrepreneurship in all areas
- Personalized learning programme to foster our staff’s soft and technical skills
- Multicultural and international work environment with more than 50 nationalities represented in our workforce
- Diverse and inclusive work environment empowering our people to fulfil their personal and professional ambitions
- Gender-friendly environment with multiple actions to attract, develop and retain women in science
- 32 days’ paid annual leave, 11 public holidays, 13-month salary, statutory health insurance
- Flexible working hours, home working policy and access to lunch vouchers
- A motivation letter oriented towards the position and detailing your experience
- A scientific CV with contact details
- List of publications (and patents, if applicable)
- Contact details of 1-2 references

**Application procedure and conditions**

We kindly request applicants to provide their nationality for statistical purposes only, as part of our commitment to promoting diversity and ensuring equal opportunities in our workforce. This information will be kept confidential and will not be used for any discriminatory purposes.

LIST is dedicated to maintaining an inclusive wor